ZIO learning - http client using synchronous sttp - shortest usage / published by https://github.com/dacr/code-examples-manager #da8a46e2-cf17-4a81-a072-d3b60b810bf6/333b2be271cf0ac78df691dd124938ec2bff3265

zio-learning-sttp-client-basic-5.sc

// summary : ZIO learning - http client using synchronous sttp - shortest usage
// keywords : scala, zio, learning, pure-functional, sttp, @testable
// publish : gist
// authors : David Crosson
// license : Apache NON-AI License Version 2.0 (https://raw.githubusercontent.com/non-ai-licenses/non-ai-licenses/main/NON-AI-APACHE2)
// id : da8a46e2-cf17-4a81-a072-d3b60b810bf6
// created-on : 2021-09-26T14:00:32+02:00
// managed-by : https://github.com/dacr/code-examples-manager
// run-with : scala-cli $file

// ---------------------
//> using scala  "3.3.1"
//> using dep "dev.zio::zio:2.0.13"
//> using dep "fr.janalyse::zio-worksheet:2.0.13.0"
//> using dep "com.softwaremill.sttp.client4::async-http-client-backend-zio:4.0.0-M5"
//> using dep "org.slf4j:slf4j-nop:2.0.7"
// ---------------------

import zio.*, zio.worksheet.*
import sttp.client4.*
import sttp.client4.asynchttpclient.zio.*

object App extends ZIOAppDefault {
  val logic = for {
    backend <- ZIO.service[SttpBackend[Task, Any]]
    result  <- backend.send(basicRequest.get(uri"https://mapland.fr/clientInfo"))
    content <- ZIO.from(result.body)
    _       <- Console.printLine(content)
  } yield content

  // ----------------------------------------------------------------

  val wiredLogic = logic.provideLayer(AsyncHttpClientZioBackend.layer())

  // ----------------------------------------------------------------

  val testingBackend =
    AsyncHttpClientZioBackend.stub
      .whenRequestMatches(_.uri.toString() == "https://mapland.fr/clientInfo")
      .thenRespond("""{"clientIP":"127.0.0.1","userAgent":"curl/42"}""")

  val stubbedLogic = logic.provide(ZLayer.succeed(testingBackend))

  // ----------------------------------------------------------------

  override def run = for {
    _ <- wiredLogic
    _ <- stubbedLogic
  } yield ()
}

App.main(Array.empty)